CAT
BREEDS A-Z
Manx
The Manx is a breed of cat with a naturally occurring mutation of
the spine. This mutation shortens the tail, resulting in a range
of tail lengths from normal to tailless. The hind legs are longer
than the front legs,
creating a continuous arch from shoulders to rump giving the cat
a rounded appearance. Manx cats move with more like a hop than a
stride when running; in this aspect, they resemble rabbits more
than cats. Many Manx have a small 'stub' of a tail, but Manx cats
are best known as being entirely tailless: it is the distinguishing
characteristic of the breed.
Origin
The Manx breed originated on the Isle of Man, hence their name.
It is called kayt Manninagh in Manx Gaelic. They are an old breed,
and tailless cats were common on the island as long as two or three
hundred years ago. It is unknown exactly how the mutation originated,
but one legend states that it was the
result of cats surviving a shipwreck centuries ago. Legends even
claim that Noah caused the breed to be tailless by closing the door
to the ark as the Manx was entering, cutting off the tail. Other
legends allege that cats and rabbits mated, and their offspring
became the Manx cat; the reasoning behind this is the fact that
Manx usually do not have tails, and have longer hind legs, which
gives them a similar appearance to rabbits, especially when running.
This was further reinforced by the Cabbit myth.
The most probable scientific
explanation of this breed's existence is that once the dominant
mutant tailless gene was introduced to the island, it became common
and concentrated in the genetically isolated population. This resulted
in the "normal" cat on the island having a short or nonexistent
tail.
Other Tailless Cats
A stumpy calico Manx.It is possible that excessive inbreeding can
result in short tails, however, the Manx breed has its shortened
tail due to a mutation in the tailless gene, which is dominant and
inheritable
regardless of the inbreeding coefficient of a particular cat. This
gene, like many others, also occurs in the domestic cat population
and in fact was probably transferred from the Isle of Man to it.
For a cat to be considered a Manx, registering bodies (CFA, TICA,
GCCF etc..) require that the cat show ancestry from the Isle of
Man in an unbroken line of succession. Many of the distinguishing
characteristics of cat breeds occur naturally sometimes in the domestic
population. As much as cat resembles a certain breed, they are considered
domestic cats unless the ancestry has been tracked through a pedigree.
This is the same in pedigreed dogs. Thus a random bred cat lacking
a tail is a domestic tailless, but not a Manx.
Tail length
A week old female Manx kitten. Take notice of the stumpy tail.The
Manx tailless gene is dominant and highly penetrant; kittens from
Manx parents are generally born without any tail. There is no proven
ratio of the amount of tailed to
tailless kittens produced in each litter. However, tailed Manx bred
to tailed Manx normally results in all tailed kittens, even though
there are exceptions.
Manx kittens are classified
according to tail length:
--Dimple rumpy or rumpy
- no tail whatsoever
--Riser or rumpy riser - stub of cartilage or several vertebrae
under the fur, most noticeable when kitten is happy and raising
its 'tail'
--Stumpy - partial tail, more than a 'riser' but less than 'tailed'
--Tailed or longy - complete or near complete tail
--Breeders have reported all tail lengths within the same litter.
The ideal show Manx is the
rumpy. The stumpy and tailed Manx do not qualify to be shown. Depending
on the presence of the mutant gene, their kittens may or may not
be tailed. In the past, kittens with stumpy or full tails have been
docked at birth as a preventative measure due to some partial tails
being very prone to a form of arthritis that causes the cat severe
pain. However, tailed Manx cats have been born for hundreds of years
on the Isle of Man with no known documented problems. Most countries
today have banned alteration of animals for cosmetic appearances.
Some United States breeders still practice the docking Manx kittens
tails as a rule. This practice is declining as other Manx breeders
educate people that this breed can have a partial to full tail with
no ill effects, and yet still be a Manx cat. Docking tails on cats
is not exclusively performed on the Manx breed; it can be performed
on any cat breed for medical necessity.
The mutation that causes
a Manx cat to be born without a tail does not occur in every Manx
kitten — not all Manx cats lack a tail. However, since they
carry Manx genetics, their kittens or descendants can be born without
a tail even if their parents had tails. Some stumpy Manx are born
with kinked tails because of incomplete development of the tail
during the fetal stage. This is somewhat rare though, as other tail
lengths (or lack thereof), as well as straight-tailed stumpy tails
are much more common.
Health
Another rumpy or possibly rumpy-riser ManxPedigreed Manx cats today
are much healthier and have fewer health issues related to their
genetics than the Manx of years ago. This is due in part to the
careful selection of breeding stock, and knowledgeable, dedicated
breeders. Manx have been known to live into their mid- to high-teens
and are no less healthy than other cat breeds. Like any other cat,
keeping Manx cats indoors, neutering or spaying, and providing acceptable
surfaces for the cat's normal scratching behavior are vital to lengthen
the life of any cat.
Manx Syndrome
Manx Syndrome is a colloquial name given to the condition which
results when the mutant tailless gene responsible for shortening
the cats' spine has an excessive negative effect. It can seriously
damage the spinal cord and the nerves. The cat can have problems
with spina bifida, bowels, bladder, and digestion as a result. Actual
occurrences of this are rare in modern examples of the breed due
to informed breeding practices. [1] Most pedigreed cats are not
placed until four months of age to make sure that proper socialisation
has occurred. This gives adequate time for any mutant gene-related
health issues to be seen, as they turn up early in the cat's life.
According to Robinson's Genetics
for Cat Breeders and Veterinarians, both the Manx tailless gene
and the Scottish Fold fold-eared gene are potential lethal genes
in utero if extreme tailless to tailless are mated or if extreme
fold-eared to fold-eared are mated. Problems are most likely to
occur when two completely tailless Manx are bred together. For this
reason, responsible breeders generally breed a 'stumpy' or fully-tailed
Manx with a 'rumpy' or 'rumpy riser' to minimise the chances of
serious defects. This breeding practice is responsible for the decreasing
occurrence of spinal problems in recent years.
Personality
A stumpy white female Manx kitten. Take notice of the long hind
legs.The Manx breed is a highly intelligent cat breed, it is playful,
and in its behaviour, very reminiscent of dogs; for example, some
Manx cats will fetch small objects that are thrown. It is considered
a social feline, and the breed loves humans. This attribute makes
them an ideal breed for families with young children. Some members
of this breed tend to like water, many times even playing with it.
This trait makes it very easy to give some Manx cats a shower for
hygiene purposes, unlike most other cats. Although not as trainable
as dogs, Manx cats can learn simple commands, such as No. Other
cat breeds that share similar personality traits are Bengal and
Ocicat. If there are multiple Manx cats in a household, an owner
might notice that they chase each other frequently. This is common
behaviour for Manx cats; they like to chase each other. However,
Manx cats usually are very quiet cats, so this is typically their
only vice.
One issue that Manx owners
may have to deal with is that a completely tailless cat may display
problems with bathroom hygiene. Many cats use their tail as an aid
for releasing Feces. Since the rumpy variants do not have a tail,
fecal matter may stick to their fur in the anal area, resulting
in the Manx using whatever it can (carpets, the litter box, furniture,
et cetera.) to assist in removal. This is not done out of spite,
nor is it observed in every rumpy Manx. Such behaviour may be difficult
to extinguish in a cat that has this issue.
Coat
Manx cats exhibit two coat lengths. The short-haired Manx has a
double coat with a thick, short under-layer and a longer, coarse
outer-layer with guard hairs. The long-haired Manx, known to some
cat registries as the Cymric, has a silky-textured double coat of
medium length, with britches, belly and neck ruff, tufts of fur
between the toes and full ear furnishings. The Cat Fanciers' Association
(CFA) considers the Cymric to be a variety of Manx. It is referred
to as a long-haired Manx, but is shown in the short-hair division
with short-haired cats even though its hair is longer. The International
Cat Association (TICA) recognises the long haired Manx as a Cymric;
the same in all respects as the Manx, except that the Cymric has
a longer coat. TICA judges the Cymric with other long-haired cats
in the long-hair division. Short- or long-haired, all Manx have
a thick double-layered coat.
Trivia
The Manx breed, in spite of the absence of tail, has no problems
with balance.
The Isle of Man has adopted the Manx as a symbol of its native origins.
On the Isle of Man, Manx cats appear on currency, coins and stamps.
Even though Manx cats cease to be kittens after one year, it takes
up to five years for any Manx cat to be fully grown.
The Manx was developed before the 1700s, and since the breed is
of medium size, the weight is on average 5.5 kg (12 lb).
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